// Behavior originally contributed by mastahg.
//
// LICENSE:
// This work is licensed under the
//     Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
// also known as CC-BY-NC-SA.  To view a copy of this license, visit
//      http://creativecommons.org/licenses/by-nc-sa/3.0/
// or send a letter to
//      Creative Commons // 171 Second Street, Suite 300 // San Francisco, California, 94105, USA.
//

#region Summary and Documentation
#endregion


#region Examples
#endregion


#region Usings

using System;
using System.Collections.Generic;
using System.Linq;

using Honorbuddy.QuestBehaviorCore;
using Styx;
using Styx.Common;
using Styx.CommonBot;
using Styx.CommonBot.Profiles;
using Styx.CommonBot.Routines;
using Styx.Pathing;
using Styx.TreeSharp;
using Styx.WoWInternals;
using Styx.WoWInternals.WoWObjects;

using Action = Styx.TreeSharp.Action;
#endregion


namespace Honorbuddy.Quest_Behaviors.SpecificQuests.ResonatingBlow
{
    [CustomBehaviorFileName(@"SpecificQuests\26659-Deepholm-ResonatingBlow")]
    public class Steping : CustomForcedBehavior
    {
        public Steping(Dictionary<string, string> args)
            : base(args)
        {
            QBCLog.BehaviorLoggingContext = this;

            try
            {
                // QuestRequirement* attributes are explained here...
                //    http://www.thebuddyforum.com/mediawiki/index.php?title=Honorbuddy_Programming_Cookbook:_QuestId_for_Custom_Behaviors
                // ...and also used for IsDone processing.
                //Location = GetAttributeAsNullable<Vector3>("", true, ConstrainAs.Vector3NonEmpty, null) ??Vector3.Zero;
                QuestId = GetAttributeAsNullable<int>("QuestId", true, ConstrainAs.QuestId(this), null) ?? 0;
                MobIds = GetAttributeAsNullable<int>("MobId", true, ConstrainAs.MobId, null) ?? 0;
                QuestRequirementComplete = QuestCompleteRequirement.NotComplete;
                QuestRequirementInLog = QuestInLogRequirement.InLog;
            }

            catch (Exception except)
            {
                // Maintenance problems occur for a number of reasons.  The primary two are...
                // * Changes were made to the behavior, and boundary conditions weren't properly tested.
                // * The Honorbuddy core was changed, and the behavior wasn't adjusted for the new changes.
                // In any case, we pinpoint the source of the problem area here, and hopefully it
                // can be quickly resolved.
                QBCLog.Exception(except);
                IsAttributeProblem = true;
            }
        }

        // DON'T EDIT THIS--it is auto-populated by Git
        public override string VersionId => QuestBehaviorBase.GitIdToVersionId("$Id: 7d75b927eb382cceb124334b1d8993c86a882ac5 $");


        // Attributes provided by caller
        private int MobIds { get; set; }
        private int QuestId { get; set; }
        private QuestCompleteRequirement QuestRequirementComplete { get; set; }
        private QuestInLogRequirement QuestRequirementInLog { get; set; }

        // Private variables for internal state
        private bool _isBehaviorDone;
        private bool IsOnFinishedRun { get; set; }
        private WoWGuid _lastguid;
        private Composite _root;

        private LocalPlayer Me { get { return (StyxWoW.Me); } }


        private List<WoWUnit> Stage1
        {
            get
            {//40794 40803 31146
                return
                    (ObjectManager.GetObjectsOfType<WoWUnit>().Where(u => u.Entry == 45191 && u.WithinInteractRange && u != CurrentStone
                        && u.Z > Me.Z).OrderByDescending(u => u.Distance).ToList());
            }
        }


        private WoWUnit CurrentStone
        {
            get { return (ObjectManager.GetObjectsOfType<WoWUnit>().FirstOrDefault(u => u.Entry == 45191 && u.GetAllAuras().FirstOrDefault(x => x.CreatorGuid == Me.Guid && x.Name == "Ride Vehicle") != null)); }
        }


        private List<WoWUnit> Good
        {
            get
            {   //40794 40803 31146
                return
                    ObjectManager.GetObjectsOfType<WoWUnit>()
                    .Where(u =>
                        u.IsValid
                        && (u.Entry == 45191)
                        && u.WithinInteractRange
                        && u != CurrentStone
                        && u.Guid != _lastguid)
                    .OrderBy(u => u.Location.DistanceSquared(Dragon.Location))
                    .ToList();
            }
        }


        private WoWUnit Dragon
        {
            get
            {
                return
                    ObjectManager.GetObjectsOfType<WoWUnit>()
                    .FirstOrDefault(u => u.IsValid
                                        && (u.Entry == MobIds));
            }
        }


        private Composite DoneYet
        {
            get
            {
                return new Decorator(ret => Me.IsQuestComplete(QuestId),
                    new Action(delegate
                    {
                        TreeRoot.StatusText = "Finished!";
                        _isBehaviorDone = true;
                        return RunStatus.Success;
                    }));
            }
        }


        private Composite DoDps
        {
            get
            {
                return
                    new Sequence(new Action(ret => Navigator.PlayerMover.MoveStop()),
                    new PrioritySelector(
                        new Decorator(ret => RoutineManager.Current.CombatBehavior != null, RoutineManager.Current.CombatBehavior),
                        new Action(c => RoutineManager.Current.Combat())));
            }
        }


        private Composite MoveCloser
        {
            get
            {
                return new Action(delegate
                {
                    if (Stage1.Count > 0)
                    {
                        var target = Stage1[0];

                        target.Interact();
                        try
                        {
                            _lastguid = CurrentStone.Guid;
                        }
                        catch (NullReferenceException e)
                        {
                            _lastguid = WoWGuid.Empty;
                            QBCLog.Error(e.ToString());
                        }
                    }
                });
            }
        }


        private Composite NewStone
        {
            get
            {
                return new Action(delegate
                {
                    if (Good.Count > 0)
                    {
                        Good[0].Interact();
                        _lastguid = CurrentStone.Guid;
                    }
                });
            }
        }


        private Composite DragonMethod
        {
            get
            {
                return new PrioritySelector(new Decorator(ret => !Me.HasAura("Searing Breath"), DoDps),
                                            new WaitContinue(4, ret => Me.HasAura("Searing Breath"), NewStone));
            }
        }


        private Composite Stepping
        {
            get
            {
                return new Decorator(ret => Me.Z < 254, MoveCloser);
            }
        }


        private Composite CreateBehavior_QuestbotMain()
        {
            return _root ?? (_root = new Decorator(ret => !_isBehaviorDone, new PrioritySelector(DoneYet, Stepping, DragonMethod)));
        }


        #region Overrides of CustomForcedBehavior

        public override bool IsDone
        {
            get
            {
                return (_isBehaviorDone     // normal completion
                        || !UtilIsProgressRequirementsMet(QuestId, QuestRequirementInLog, QuestRequirementComplete));
            }
        }


        public override void OnFinished()
        {
            // Defend against being called multiple times (just in case)...
            if (IsOnFinishedRun)
            { return; }

            // Clean up resources...
            TreeHooks.Instance.RemoveHook("Questbot_Main", CreateBehavior_QuestbotMain());

            TreeRoot.GoalText = string.Empty;
            TreeRoot.StatusText = string.Empty;

            // QuestBehaviorBase.OnFinished() will set IsOnFinishedRun...
            base.OnFinished();
            IsOnFinishedRun = true;
        }


        public override void OnStart()
        {
            // This reports problems, and stops BT processing if there was a problem with attributes...
            // We had to defer this action, as the 'profile line number' is not available during the element's
            // constructor call.
            OnStart_HandleAttributeProblem();

            // If the quest is complete, this behavior is already done...
            // So we don't want to falsely inform the user of things that will be skipped.
            if (!IsDone)
            {
                TreeHooks.Instance.InsertHook("Questbot_Main", 0, CreateBehavior_QuestbotMain());

                this.UpdateGoalText(QuestId);
            }
        }
        #endregion
    }
}